Qi Yu Xiaofei practiced this name, and felt that there was still a slight taste of the children of the rivers and lakes. There is also the kind of white body color, but the tail is pure black, which is called the snow drag gun, and there are also called silver bottle drag guns.

The cat's whole body is pure white, with a black or yellow mark on its forehead, a black mark on its white head means a hanging mark, and its tail means a drag gun, also known as a star cat.

Raising such a cat can bring wealth, seals were a necessity for civil officials in ancient times, and guns were weapons for military officials.

White cats have yellow spots on their bodies, called snow golden wisps, and are also called hydrangeas. Cats with all-white coat and a black tail are called Snow Drag.

In the "Xiang Cat Sutra", it is described that "the black-tailed cat is white, and the production of people and animals is heroic", which is also believed to bring blessings.

The whole body is snow-white, but there is a little yellow hair or black cat on the back, which is called the general's hanging seal. However, there are those who say that the yellow block is also called the white robe and gold seal. If the cat is white all over and has a yellow tail, it is called a golden hook hanging silver bottle, also called a golden hook hanging jade bottle or a golden hairpin inserted silver bottle, and the gold and silver bottle is also said to be it.

In addition to the imperial court ceremony, the first ascension to the pole and the ceremony of conferring and accepting, there are also pro-government, the curtain of the late Qing Dynasty to listen to the government, the emperor's honorific title, emblem, the empress dowager, the empress dowager's honorific title, emblem, etc. It is as important as enthronement, wedding, and birthday.

It was jointly handled by the Ministry of Rites, Luan Yiwei and the Department of Internal Affairs, and countless amounts of money were spent.

After ascending the throne, the steps were whipped three times, and under the command of the praise officer, the ministers knelt three times and bowed nine times. During the ceremony, the hundred officials saluted and played the great music of His Majesty, but at this time, it was not done, and the congratulatory text of the ministers was not announced.

Finally, an edict was issued to show that the emperor was the "true son of heaven", and the ceremony was solemn and solemn.

First of all, the scholar will hold out the edict again, the Ministry of Rites Shangshu holds the edict to the bottom of the steps, and the official of the Ministry of Rites is placed in the cloud disk, which is a kind of wooden tray decorated with cloud patterns.

The civil and military officials were respectively from the Zhaode Gate and Zhendu Gate on both sides of the Taihe Gate with the edict out of the noon gate, put the edict in the Dragon Pavilion, and carried it to the Tiananmen Gate Tower to promulgate. Emperor Qianlong returned to the palace and changed into filial piety clothes. The scholars returned the "Emperor's Treasure" and stored it in Ouchi.

During the period of vigorous development of large-mouth shallow well-type salt wells, it was possible to mine not only the underground salt brine marked by natural salt springs and salt rocks, but also the underground salt brine marked by natural salt springs.

It is said that in the past, the copper mine was developed, but now there is less copper.

The cold flue gas may be natural gas that contains more carbon monoxide. The depth of the mine and how to prevent cold smoke are mentioned here, but the structure of the mine as a whole is not described.

The book says: "In the middle of February, Mr. Grass and Trees droops, and there is beautiful jade under it.

In the middle of May, the leaves of the grass and trees are green and sap, and the branches droop down, and the ground is jade.

In the middle of August, if the branches and leaves of the plants and trees droop, there will be beautiful jade. There are clouds, and after August, there is also jade for the dead of grass and trees.

In the middle of December, the grass and trees have unique branches and leaves, and there are beautiful jades underneath. ”

The main coloring elements in ochre color are iron, and the main coloring elements in black color are iron and manganese. Therefore, it is estimated that the ochre color material may be ochre, and the black color material may be a red clay with high iron content, or black gold and purple gold soil.

The white pigment may be a type of porcelain clay with flux. The glaze on the surface of Shang and Zhou glazed pottery is made of natural calcium carbonate minerals combined with clay. This lime glaze is the ancestor of celadon glaze in later generations. Celadon glaze is formulated from limestone and porcelain clay. In lime glaze, iron is the main colouring element, followed by titanium and manganese.

Copper gives the glaze an emerald green color, and iron gives the glaze a yellowish-brown and brownish-red color. Adding a small amount of cobalt-containing or manganese-containing minerals to the lead glaze will also give a variety of different shades of glaze such as blue and purple.

Moreover, if it is said that there are green onions in the mountains, there is silver below, and the light is faintly white.

There are 266 kinds of mineral medicines listed in the book, and in addition to the three parts of water, fire, and earth, there are more than 160 kinds of mineral medicines contained in the gold and stone department, including appendices, which are divided into four categories: gold, jade, stone, and halogen.

In addition, there are different degrees of detailed descriptions of the origin, shape, color, mining and identification methods of each type of gold and stone.

The mouth of the well is only the size of a small bowl, but it is dozens of feet deep.

Use thick bamboo to make a well sleeve to cut off fresh water. Use relatively small bamboo to make buckets, go in and out of the well, fill several buckets of water in a tube, and lift them with machinery.

This "round edge" is the forerunner of various types of chisel knives used for drilling in modern times, and it is indispensable in deep well drilling.

Mercury or gold ore is dominated by placer ore. In placer deposits where mercury and gold coexist, it is more accurate.

The lead-dominated lead-zinc-copper polymetallic deposits also exist with greenstone on the top and tin on the bottom, and the greenstone on the top and red copper on the bottom is also an accurate reflection of the actual situation.

"There are shallots on the hills, and silver below; There are shallots on the mountains, and gold below; There is ginger on the mountain, and copper tin below; There are precious treasures in the mountains, and the branches of the trees are drooping. ”

Although these records do not necessarily correspond to reality, he pointed out that the direction of prospecting for mineral use of indicator plants is correct, linking the underground deposits with the plants on the surface.

A certain mineral that appears on the mountain and another mineral that appears below the mountain are produced in different strata or rocks, and they are not the same ore body, which is only a relative relationship in location.

At the same time, a series of complex technical problems such as underground ventilation, drainage, hoisting and roadway support are preliminarily solved by various technical means.

Underground, miners use boat-shaped wooden discs and other instruments to carry out gravity beneficiation to determine the grade of ore and determine the direction of mining. They were very precise in selecting the high-grade areas of the ore bodies in the fault contact zone for mining.

Generally, after the surface is opened along the outcrop of the vein, the inclined shaft is mined from top to bottom along the vein trend. The mine shaft is irregular, wide and narrow, and has a curved rat hole. The vertical depth is about eighty meters.

The book "Compendium of Materia Medica", in which there are more than 30 kinds of main works on materia medica. The works of Materia Medica record the medicinal properties of minerals, the chemical and physical properties of minerals, the origin of minerals, and the methods of identification and mining.

The 50-meter-deep shaft is divided into several sections, that is, a section of the shaft is dug and a section of the roadway is dug, and each roadway is equipped with a roller, so that the relay is completed step by step.

Some of these minerals are malachite green and some are golden yellow, bright in color, easy to find and mined, and the copper is also of high grade, which is revealed during open pit mining.

In the goaf with a large span, there are pillars or partition walls, and between the adjacent pillars with a relatively large span, wooden pillars are supplemented to prevent the roof of the mine from collapsing due to excessive pressure.

For example, mine workers use the air pressure difference at different wellheads to form a natural air flow, and adopt a closed abandoned roadway to control the air flow along the mining direction to ensure that the air flow reaches the deepest working face.

Therefore it is impossible to be close to him or to be distant from him; It is impossible to profit him or to victimize him; It is impossible to make him noble or humble, so he is valued by the people of the world.

It refers to not showing the edge, dissolving disputes, frustrating people's edge, relieving their strife, restraining their glory, and mixing up their earthly world, this is the profound mystery.

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